Assessment of Soil Fertility Status of Oilseed Research Program, Nawalpur, Sarlahi, Nepal

Khadka, Dinesh; Lamichhane, Sushil; Joshi, Sushila; Malla, Razan

doi:10.21474/ijar01/665

Cited by 11 publications

(27 citation statements)

References 3 publications

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“…Consistent result was also obtained during soil fertility assessment and mapping of research block of National Maize Research Program, Rampur, Chitwan, Nepal at 0 to 20 cm depth (Khadka et al, 2016 …”

Section: Laboratory Observationssupporting

confidence: 80%

“…Upper layer is more acidic than others might be due to more influence of crop production activity in this layer. Consistent result was also obtained during surface (0 to 20cm) soil fertility assessment and mapping of the seed production block of National Maize Research Program, Rampur, Chitwan, Nepal (Khadka et al, 2016). The different agricultural activities running during crop production enhances soil acidity in long-term (Havlin et al, 2010).The organic matter, total nitrogen, available phosphorus (as P 2 O 5 ), available potassium (as K 2 O), available sulphur, available boron, available iron, available zinc, available copper and available manganese content was decreasing in order from top to bottom layers in majority of the pits.…”

Section: Laboratory Observationssupporting

confidence: 79%

“…Corresponding result was also obtained during soil fertility assessment and mapping of agronomy block of National Maize Research Program, Rampur, Chitwan, Nepal at 0 to 20 cm depth (Khadka et al, 2016). The bottom layer of both pits was slightly acidic, while other layers were moderately acidic in nature.…”

Section: Laboratory Observationssupporting

confidence: 69%

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Soil physico-chemical characterization in the different soil layers of National Maize Research Program, Rampur, Chitwan, Nepal

Khadka

Lamichhane

Timilsina

et al. 2018

J. Maize Res. & Dev.

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Soil pit digging and their precise study is a decision making tool to assess history and future of soil management of a particular area. Thus, the present study was carried out to differentiate soil physico-chemical properties in the different layers of excavated pit of the National Maize Research Program, Rampur, Chitwan, Nepal. Eight pits were dug randomly from three blocks at a depth of 0 to 100 cm. The soil parameters were determined in-situ, and in laboratory for texture, pH, OM, N, P (as P 2 O 5 ), K (as K 2 O), Ca, Mg, S, B, Fe, Zn, Cu and Mn of collected soils samples of different layers following standard analytical methods at Soil Science Division, Khumaltar. The result revealed that soil structure was sub-angular in majority of the layers, whereas bottom layer was single grained. The value and chrome of colour was increasing in order from surface to bottom in the majority pits. Similarly, the texture was sandy loam in majority layers of the pits. Moreover, four types of consistence (loose to firm) were observed. Furthermore, mottles and gravels were absent in the majority layers. Likewise, soil was very to moderately acidic in observed layers of majority pits, except bottom layer of agronomy block was slightly acidic. Regarding fertility parameters (OM, macro and micronutrients), some were increasing and vice-versa, while others were intermittent also. Therefore, a single layer is not dominant for particular soil physico-chemical parameters in the farm. In overall, surface layer is more fertile than rest of the layers in all the pits.

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Section: Laboratory Observationssupporting

confidence: 80%

Section: Laboratory Observationssupporting

confidence: 79%

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Soil physico-chemical characterization in the different soil layers of National Maize Research Program, Rampur, Chitwan, Nepal

Khadka

Lamichhane

Timilsina

et al. 2018

J. Maize Res. & Dev.

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“…Available iron showed high variability (72%) among the soil samples. The iron content is high in the most of the terai region of Nepal (Khadka et al, 2015;Khadka et al, 2016a;Khadka et al, 2016b;Khadka et al, 2017). The very high availability of iron might be due to high possibility of primary and secondary iron minerals like hematite, olivine, siderite, goethite, magnetite etc (Das, 2000).…”

Section: Available Ironmentioning

confidence: 99%

Evaluation of soil fertility status of Regional Agricultural Research Station, Tarahara, Sunsari, Nepal

Khadka¹,

Lamichhane²,

Shrestha³

et al. 2017

Eurasian Journal of Soil Science (Ejss)

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“…Soil fertility of an area declines periodically due to various natural and human influenced factors. The inadequate soil fertility is a major constraint for sustained agricultural development in different sites of Nepal (Khadka et al, 2016a;Khadka et al, 2016b;Khadka et al, 2016c;Khadka et al, 2016d;Khadka et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Soil Fertility Assessment and Mapping of Agricultural Research Station, Jaubari, Illam, Nepal

Khadka

Lamichhane

Shrestha³

et al. 2017

Int. J. Environ.

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Soil fertility evaluation is a prerequisite factor for sustainable planning of a particular region. Considering this, a study was conducted to determine the soil fertility status of the Agricultural Research Station, Jaubari, Illam, Nepal. In total, 78 soil samples were collected using soil sampling auger randomly from a depth of 0-20 cm. The texture, pH, OM, N, P 2 O 5 , K 2 O, Ca, Mg, S, B, Fe, Zn, Cu and Mn status of the samples were analyzed in the laboratory of Soil Science Division, Khumaltar by following standard analytical methods. The soil fertility maps of the observed parameters were prepared through Arc-GIS 10.1 software. The observed data revealed that soil was brown (10YR 4/3), dark grayish brown (10YR 4/2), dark yellowish brown (10YR 4/4) and yellowish brown (10YR 5/6) in colour, and the structure was granular. Similarly, the sand, silt and clay content were 53.84±1.06%, 34.34±0.83% and 11.82±0.47%, respectively and were indicated as sandy loam and loam in texture. The soil was very acidic (pH 3.85±0.04), and very low in available boron (0.26±0.06mg/kg) and available sulphur (0.59±0.15mg/kg).The available calcium (188.7±31.30mg/kg), available magnesium (50.98±5.0mg/kg) and available manganese (5.16±0.90mg/kg) were low. Likewise, available potassium (110.91±7.30mg/kg), available zinc (1.19±0.31mg/kg) and available copper (0.95±0.05mg/kg) content were medium. Similarly, organic matter (7.88±0.32%), total nitrogen (0.27±0.01%) and available phosphorus (36.53±5.66mg/kg) were high, and available iron (39.5±2.17 mg/kg) was very high.

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Assessment of Soil Fertility Status of Oilseed Research Program, Nawalpur, Sarlahi, Nepal

Cited by 11 publications

References 3 publications

Soil physico-chemical characterization in the different soil layers of National Maize Research Program, Rampur, Chitwan, Nepal

Soil physico-chemical characterization in the different soil layers of National Maize Research Program, Rampur, Chitwan, Nepal

Evaluation of soil fertility status of Regional Agricultural Research Station, Tarahara, Sunsari, Nepal

Soil Fertility Assessment and Mapping of Agricultural Research Station, Jaubari, Illam, Nepal

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